Does your TV support UPNP Streaming?If not you need a further media Box. If you have xBox 360 or PS3 its also OK.

Install Twonky Server 6.0.1 on your NAS Duo. You can get the BIN file from the neatgear forum on http://readynas.comInstall it over your Update function in the WebGUI of the NAS. After installtion reboot your NAS.Then you have a new share "media" on your NAS. Create a pictures, music and videos folder inside this media folder and set it up in the server. Copy some media into this folders and rebuild your twonky database. Thats it.